I love ice coffee even more than regular coffee. perhaps because I associate it with summer and travels to warmer countries. My favorite is Vietnamese ice coffee, but a close runner up is the Greek version, frappé. It can be served either black or with milk and both are super yummy. I became infatuated with frappé when I traveled to Crete 11 years ago, and subsequently asked a bartender to show me how it is done. In Greece it is wise to order "medium sugar", since they can turn out sickly sweet otherwise. My version is a little less sweet than a medium frappé, but you can always add more sugar if you prefer.
3/5 cups cold water (1,5 dl)
1/2 tablespoon instant coffee
1/2-1 tablespoon sugar
Plenty of ice
2/5 cups milk (1 dl) (you can use less milk if you prefer)
A shaker or anything that you can close tightly - like a glass jar with a lid.
Pour the water in the shaker.
Add a generous serving of ice
Close the lid and shake vigorously in order to get the plenty of froth. In Greece nowadays they usually use the steamer on the espresso machine to create the froth and you can also use a blender. But regular shaking works great.
Lots of lovely froth. You'll get more froth without the milk, that is why I'll add milk after the shaking.
Pour the coffee in a glass and add the milk. Enjoy!